Packing box press



Jan. 10, 1933. BYlNGTON 1,894,156

PACKING BOX PRESS Filed March 4, 1930 2 Sheets-Sheet l INVENTOR.

Jav Z6 72/ Jan. 10, 1933. .1. A. BYINGTON PACKING BOX PRESS Filed March 4. 1930 2 Sheets-Sheet 2 Patented Jan. 10, 1933 GFFECE JAMES AUGUSTUS BYINGTON, OF ORLANDO, FLORIDA PACKING BOX FBESS Application filed March 4, 1930. Serial No. 433,148.

The invention relates to presses particularly adapted for holding and forcing down box covers of the character used on fruit cases while the cover is being nailed.

A further object is to provide a box cover holder comprising a support for the body of the case and downwardly movable arms adapted to engage the upper side of the cover and press the same downwardly onto the body and hold the cover during the cover nailing operation.

A further object is to provide the vertically slidable arms with connections to piston rods having pistons slidably mounted in cylinders carried by the under side of the table and means for forcing air into said cylinders for forcing the pistons and slidable arms downwardly against the action of contractible springs.

A. further object is to provide means whereby extreme downward movement of the slideable arms may be limited, and at the same time allowing the arms from the same control mechanism to vary in their downward movement to accommodate themselves to the differences in the measurements of the packing case.

A further object is to provide adjustable stops beneath the lower ends of the vertically slidable arms for varying the downward movement of the arms.

A further object is to slidably mount the vertically movable arms between vertical up-- rights with their forward sides in engagement with the rear side of the table, and their rear sides in engagement with anti-frictional rollers above and below the table and between the vertical uprights.

A further object is to provide afoot control lever controlling a rotary valve whereby compressed air from any suitable source of supply may be supplied to the cylinders for forcing the slidable arms downwardly and means whereby upon release of the foot lever,

air will be allowed to exhaust from the cylinders, thereby al owing the springs to force the vertically slidable arms upwardly.

With the above and other objects in view the invention resides in the combination and arrangement of parts as hereinafter set forth,

shown in the drawings, described and claimed, it being understood that changes in the precise embodiment of the invention may be made within the scope of what is claimed without departing from the spirit of the invention.

in the drawings:

Figure l is a perspective view of the lid holding device.

Figure 2 is a vertical transverse sectional view through one side of the lid holding machine, parts being shown in elevation.

Figure 3 is a horizontal sectional view through the uprights taken above the table.

Figure 4 is a vertical transverse sectional view through the rotary valve, showing the valve in exhaust position.

Referring to the drawings, the numeral 1 designates the front vertical supports for the table 2 and 3 the spaced rear supports which extend upwardly and are secured at 4: to the rear vertical flange 5 of the table 2. Slidably mounted between the rear vertical supports 3 are bars 6, the rear edges of which engage the antifriction rollers 7 between the bars 3. The forward edge of the bars 6 slidably engage the rear side of the upwardly extending table flange 5 intermediate the rollers 7, therefore it will be seen that the bars 6 will be accurately guided in their upward and downward movement.

The upper ends of the bars 6 terminate in forwardly extending arms 8, which arms, when the bars 6 are forced downwardly, engage the cover 9 of the case 10, in which fruit is packed and holds said cover on the case during the nailing operation.

Extending inwardly from the lower ends of vertically slidable bars 6 are arms 11, to which are connected at 12 upwardly extending piston rods 13. Piston rods 13 extend into the cylinders 14, which are secured by means of screws 15 to the under side of the table 2 and provided with conventional forms of pistons 16 against the upper sides of which compressed air from any suitable source of supply acts for forcing the arms 6, to which the piston rods are connected, downwardly against the action of the contractible coiled springs ll' therefore it will be seen that the packing case cover 9 is positively held for the nailing operation, and when the pressure is relieved the springs 1'? will raise the slidable bars 6 for releasing the cover 9. To obviate applying excessive pressure to the packing box or case, adjustable limiting screws 18 are provided, and which screws extend through brackets 19 carried by the spaced bars 3 in positions where the limiting screws will be in the path of the inwardly extending arms 11 as clearly shown in Figure 2. The lower ends of the springs 17 are connected to members 20 carried by the arms 11 and the upper ends are anchored at 21 to the underside of the table 2, therefore it will be seen that the pull on the contractible springs will be vertically directed, for immediately raising the arms 8 out of engagement with the lid or cover 9 after the nailing operation for allowing the fruit box or crate to be removed so that the next box or crate may be placed in position for the nailing operation.

The vertical bars 1 and 8 are connected together by means of brace bars 22 and 23, and the front bars 1 are further braced in relation to each other by means of the diverging rods 24 connecting them to the table 2.

Air is supplied to the cylinders 14 through the pipes 25, which are connected to the supply pipe 26. Supply pipe extends downwardly and is connected to a valve casing 2?, therefore it will be seen that when air is supplied to the pipe 26 it will on the upper sides of both pistons 16 and simultaneously force the same downwardly. Rotatably mounted within the valve casing 27 is a plug valve 28 having an arcuate port 29 therein,

and it will be seen by referring to Figare 4 that when the plug valve is in normal inoperative position when shown in Figure 4: that pressure within the cylinder 14 will be released through pipes 25, and 26, arcnate port 29 in the plug valve and through the exhaust port 30. When it is desired to clamp a cover or lid on a case, the case is placed on the table 2, and the operator places his foot on the foot lever 31 and forces the same downwardly against the action of the spring 32. This action will rotate the plug valve 28 in the direction of the arrow a, Figure 4, until the exhaust port is closed, and the supply pipe 33 is uncovered, thereby allowing air to pass through port 29, pipes 26 and 25 and into the cylinders 14 for forcing the clamping arms 8 downwardly onto the lid 9. It will be noted that after the nailing operation, the operator by releasing the foot lever 31 allows the contractible spring 32 to return the plug valve 28 to normal position shown in Figure 4, which will allow exhaust of air from the cylinders 14 to the atmosphere through exhaust port 30, consequently allows springs 17 to contract and force bars 6 upwardly.

From the above it will be seen that a case Hill lllll' Ilyl! Hll llllll lid clamping machine is provided which is simple in construction, the parts reduced to a minimum and one which may be cheaply constructed.

Pipe 33 may lead to any suitable source of compressed air supply and ap licant does not limit himself in this particu ar.

The invention having been set forth what is claimed as new and useful is 1. A packing case lid holder comprising a table, a frame supporting said table, spaced bars secured to the rear side 0% the table, vertically slidable bars between the spaced bars and engaging the rear side of the table, antifrictional rollers engaging the rear sides of the slide bars, lid engaging arms carried by the slide bars and overlying the table, air controlled extensible means interposed between the underside of the table and the slide bars beneath the table, contractible spring means connecting the under side of the table and the slide bars beneath the table and adj ustable limiting means carried by the spaced bars and cooperating with the slide bars for limiting their downward movement.

2. The combination with a packing case lid holder comprising clamping arms movable towards and away from a table, of separate air controlled expansible means for moving said arms towards the table, means for moving said arms away from the table, means for simultaneously supplying air to the extensible air controlled means from a single source of power for moving the arms under equal pressure against the action of the means for moving the arms away from the table and means for simultaneously releasing air from the separate extensible air controlled means after lid clamping operation for allowing the arms to move away from the table.

In testimony whereof he hereunto aflixes his signature.

JAMES AUGUSTUS BYINGTON. 

